Answers
Related Questions
1.Briefly describe the wind motion of the stationary front
.
2.What is another name for stationary front.
Answers
Answer:
stationary front is when it is not moving that is why weather is the same in some areas
Explanation:quasi-stationary front
The solid has a mass of 180 g. What is the density of the solid? Show your work. Be sure to use correct units of measurement. HELP NEEDED ASAP!!!!
Answers
Answer:
1.2 g/cm³
Explanation:
From the question given above, the following data were obtained:
Mass of solid = 180 g
Length (L) of solid = 10 cm
Width (W) of solid = 5 cm
Height (H) of solid = 3 cm
Density of solid =?
Next, we shall determine the volume of the solid. This can be obtained as follow:
Length (L) of solid = 10 cm
Width (W) of solid = 5 cm
Height (H) of solid = 3 cm
Volume (V) of solid =?
V = L× W × H
V = 10 × 5 × 3
V = 150 cm³
Finally, we shall determine the density of the solid. This can be obtained as follow:
Mass of solid = 180 g
Volume of solid = 150 cm³
Density of solid =?
Density = mass / volume
Density = 180 g / 150 cm³
Density of solid = 1.2 g/cm³
What is the water cycle ?
Answers
Answer:
The water cycle shows the continuous movement of water within the Earth and atmosphere. ... Liquid water evaporates into water vapor, condenses to form clouds, and precipitates back to earth in the form of rain and snow. Water in different phases moves through the atmosphere (transportation).
Explanation:
It's the water cycle.
What is the index of refraction for a material if the speed of light in that material is 1.862x108 m/s?
Answers
The index of refraction for the material is 1.612.
The index of refraction (n) of a material can be calculated using the formula:
n = c / v
where c is the speed of light in vacuum and v is the speed of light in the material.
Given that the speed of light in the material is 1.862x\(10^8\) m/s, we can substitute the values into the formula:
n = (3.00x\(10^8 m/s) / (1.862x10^8 m/s\))
Simplifying the expression:
n = 1.612
Therefore, the index of refraction for the material is approximately 1.612.
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At a weightlifting competition two competitors list of the same way to the same height the second competitor accomplished to live two seconds faster than the first competitor this demonstrates that the second competitor had one more
Answers
Initial velocity: U = ?
Final velocity: v = 0
Gravity: g = 9,8 ms²
Height: h = 20m
v² = u² + 2gh
0 = u² + 2 (-9,8ms²) x 20m
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The initial velocity of the object in motion is determined as 19.8 m/s.
What is the initial velocity of the object?The initial velocity of the object in motion is calculated by applying the third equation of motion as follows;
v² = u² + 2gh
where;
v is the final velocity of the objectu is the initial velocity of the objectg is acceleration due to gravityh is the height through which the object riseswhen the object reaches maximum height, the final velocity, v = 0
The initial velocity of the object in motion is calculated as;
0 = u² + 2 (-9,8ms²) x 20m
0 = u² - 392
u² = 392
u = √392
u = 19.8 m/s
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A ball traveling at 15 m/s hits a bat with a force of 200N. How much force does the bat (moving at 20m/s)
hit the ball with?
O 200
O 15
O 20
O 20
Answers
Answer:
200 N
Explanation:
Given that,
A ball traveling at 15 m/s hits a bat with a force of 200 N.
We need to find the force that the bat moving at 20 m/s hit the ball with.
We know that, this probelm is based on Newton's third law of motion. The force that the ball exerting on bat should be equal to the force that the bat exerting in the ball but in opposite direction.
It would mean that the ball hits the ball with a force of 200 N. Hence, the correct option is (a).
How do ice cubes form in the freezer?
Answers
Answer:
In a freezer, the air molecules absorb energy from the water, causing the water molecules to freeze into a solid.
Answer: Water expands when it freezes. As freezing continues, the expanding ice under the surface forces the remaining water up through the hole and it freezes around the edge forming a hollow spike
Explanation:
Water expands when it freezes. As freezing continues, the expanding ice under the surface forces the remaining water up through the hole and it freezes around the edge forming a hollow spike. Eventually, the whole thing freezes and the spike is left.
two spheres A and B are projected off the edge of a 1.0 m high table with the same horizontal velocity . sphere A has a mass of 20.g and sphere B has a mass of 10.g.
If both spheres leave the edge of the table at the same instant, sphere A will land
a. at some time after sphere B.
b. at the same time as sphere B.
c. at some time before sphere B.
d. There is not enough information to decide.
Answers
Answer:
c. because A will land first becuase its heavier
Explanation:
A planet with a mass one-half that of Earth has a radius that is 3 times that of Earth's radius. What is the gravitational field strength of the planet?
Answers
The gravitational acceleration of a planet is proportional to the planet's mass, and inversely proportional to square of the planet's radius.
So when you stand on the surface of this particular planet, you feel a force of gravity that is
(1/2) / (3²)
of the force that you feel on the surface of the Earth.
That's (1/18) as much as on Earth.
The acceleration of gravity there would be about 0.545 m/s².
This is about 12% less than the gravity on Pluto.
Help me plz!!. What keeps the satellite move on it's orbit.
Answers
Answer:
velocity and the gravitational pull that Earth has on it.
(motion of a satellite is the force of gravity)
Density of a liquid decreases by 0.1%. What is
the linear expansivity if temperature increased
is 100°C?
Answers
Use the table and the diagram below to correctly label the force that’s shown by the arrow pointing up. (ignore selected answer i just had to pick something)
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When an object lies on the ground, the ground applies a force which is perpendicular (or normal) to the surface of the ground and points away from it. Such force is called the Normal Force, and it balances the gravitational pull so the object does not sink infinitely towards the floor.
Therefore, the force that's shown in the diagram pointing up is the normal force. The answer is:
\(\text{Normal Force}\)What is a possible evelation for the surface of darry lin lake?
1)228 feet
2)242 feet
3)255 feet
4)268 feet
Answers
Answer:
2) 242. 100 percent sure.
Explanation:
255 feet
I just did it
mengapa cahaya bisa merambat di ruang hampa udara?
Answers
Explanation:
speak a English I don't know you language
Big Bubba has a mass of 80 kg. What are his mass and weight on the moon respectively, if the acceleration due to gravity on the moon is 1.67 m/s2?
80 kg, 134 N
120 kg, 134 N
80 kg, 1180 N
120 kg, 704 N
Answers
Answer:
A
Explanation:
m = 80 kg
a = 1.67 m/s^2
The mass is the same anywhere in the universe. So Bubba will be 80 kg anywhere. That makes A and C the only possible answers.
F = Weight = m * a
F = 80 * 1.67
F = 134 N
The answer is A
On a roller coaster, riders can experience a force of up to 4 g. What is the
maximum acceleration of the roller coaster?
O A. 51.7 m/s2
B. 39.2 m/s2
O C. 58.4 m/s2
O D. 45.6 m/s2
SUBMIT
Answers
Hope this helps
five physical properties of metals
Answers
Metals are good conductors of heat and electricity.
Metals are lustrous (shiny) and can be polished.
Metals are solids at room temperature (except mercury, which is liquid).
Metals are tough and strong.
hope this helps!
a pair of figure skaters are performing a spin maneuver. The axis of rotation goes through the left foot of the skater on the left. What
action could increase the pair's angular velocity?
Answers
Answer:
Angular momentum
Explanation:
Angular momentum is a conserved physical quantity, similar to the way that energy is a conserved quantity
A light spring having a force constant of 115 N/m is used to pull a 9.00 kg sled on a horizontal frictionless ice rink. The sled has an acceleration of 2.10 m/s2. Part A By how much does the spring stretch if it pulls on the sled horizontally
Answers
Answer:
Stretch in the spring = 0.1643 (Approx)
Explanation:
Given:
Mass of the sled (m) = 9 kg
Acceleration of the sled (a) = 2.10 m/s ²
Spring constant (k) = 115 N/m
Computation:
Tension force in the spring (T) = ma
Tension force in the spring (T) = 9 × 2.10
Tension force in the spring (T) = 18.9 N
Tension force in the spring = Spring constant (k) × Stretch in the spring
18.9 N = 115 N × Stretch in the spring
Stretch in the spring = 18.9 / 115
Stretch in the spring = 0.1643 (Approx)
PLEASE ANSWER FAST In which of the following situations is the greatest amount of work accomplished? 1. A boy lifts a 2-newton box 0.8 meters. 2. A boy lifts a 5-newton box 0.8 meters. 3.A boy lifts a 8-newton box 0.2 meters. 4.A boy lifts a 10-newton box 0.2 meters.
Answers
Explanation:
Work done is given by the product of force and displacement.
Case 1,
1. A boy lifts a 2-newton box 0.8 meters.
W = 2 N × 0.8 m = 1.6 J
2. A boy lifts a 5-newton box 0.8 meters.
W = 5 N × 0.8 m = 4 J
3. A boy lifts a 8-newton box 0.2 meters.
W = 8 N × 0.2 m = 1.6 J
4. A boy lifts a 10-newton box 0.2 meters.
W = 10 N × 0.2 m = 2 J
Out of the four options, in option (2) ''A boy lifts a 5-newton box 0.8 meters'', the work done is 4 J. Hence, the greatest work done is 4 J.
: Absolute uncertainties are added in which following operations
i. Addition ii. Subtraction
iii. Multiplication iv. Division
A. i only
B. i & ii
C. i, ii & iii
D. All of them
Answers
Answer:
Answer B (I & II)
Explanation:
Absolute uncertainties are added in the case of addition and subtraction. Therefore, the correct answer is answer B (I & II)
What is the speed of an object that has traveled 60 meters in 15 seconds
Answers
Answer:
4m/s
Explanation:
To calculate the speed of an object, we use the formula:
Speed = Distance / Time
So, You can it your self inspect of me.
Good luck
An infrared (IR) and ultraviolet (UV) wave propagating through a vacuum must have the same____
a. speed
b. amplitude
c. frequency
d. wavelength
Answers
Answer:
D. Wavelength
Explanation:
An infrared (IR) and ultraviolet (UV) wave propagating through a vacuum must have the same wavelength.
A 300 kg motorcycle is traveling12 m/s and then slows down to 6m/s. Calculate the change inmomentum of the motorcycle.
Answers
The change in momentum is given as:
\(\Delta p=p_f-p_0\)where the momentum is defined as:
\(undefined\)A group of students were playing basketball together during recess. The temperature outside was 30.5 oC (87 oF) and the sun was out. The students ran, shot baskets, and dribbled the ball for 30 minutes. When they finished their game some of the students made the following comments:
Answers
Our muscles need more oxygen to make energy (in the form of ATP) while we workout.
When the respiratory rate picks up to fulfill this need, more oxygen can enter the body and more carbon dioxide can be exhaled.
Student 3 is breathing more forcefully than usual in this situation because of the high temperature and physical activity.
The respiratory system is the organ system engaged in this process.
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# complete question:
A group of students were playing basketball together during recess. The temperature outside was 30.5 oC (87 oF) and the sun was out. The students ran, shot baskets, and dribbled the ball for 30 minutes. When they finished their game some of the students made the following comments:
Student 1: Wow! I am so hot and sweaty! I need some water to cool down.
Student 2: My cheeks are really red.
Student 3: I am breathing so hard, I can barely catch my breath!
Explain what is happening to the students and how their bodies are trying to maintain homeostasis. Be sure to include any of the organ systems involved with each student.
Which of the following would be examples of derived demand?
1. A school hiring more teachers because the school's enrollment increased.
II. More people working at the movie theatre on Friday night because attendance increased.
III. More construction workers are needed because more people can afford to buy a new house.
O I and II only
o I and III only
Il and Ill only
O I, II and III
Answers
Answer:
The last one
Explanation:
on the exam
Among the following the derived demands are options 1 and 3 only. Because in each case, the demand for one thing is originated by the demand for another.
What is derived demand?The phrase derived demand in economics refers to the demand for a factor of production or intermediate good that results from the demand for another intermediate or final good. In essence, consumer demand for the firm's product determines how much a firm will need.
Additionally, if activity in one area rises, any sector that contributed to the success of the first sector may also experience growth. Here, the school is hiring more teachers because enrollment is increased. Thus, enrolling more teachers satisfies the demand by greater enrollments.
Similarly by recruiting more construction workers the increased demand for new house by people can be solved. However, the second case for filling the attendance is a necessary and not a derived demand.
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The world’s narrowest street, which is located in a small Italian village, is only 43 cm wide. Suppose a fish with a mass of 1.8 kg is hung from a string attached to a stick. The stick, slightly longer than the street is wide, is placed horizontally across the narrow street with each end resting on a windowsill. The fish hangs a horizontal distance of 7.0 cm from the windowsill on the right. If the axis of rotation for the stick is taken to be the end farthest from the fish, what is the magnitude of the torque produced by the fish? Assume the stick has negligible mass.
Answers
The magnitude of the torque produced by the fish is approximately 6.34 N·m.
What is Axis of Rotation?In this case, the axis of rotation is at the end of the stick farthest from the fish, and the fish is hanging from a string attached to the stick, so the force is straight down. The distance from the axis of rotation to the fish is the length of the stick minus the distance from the fish to the windowsill on the right:
τ = r × F × sin(θ)
r = 0.43 m - 0.07 m = 0.36 m
The force is the weight of the fish, which we can calculate using the gravitational acceleration near the Earth's surface:
F = m × g = 1.8 kg × 9.81 m/s2 = 17.658 N
The angle between the force and the lever arm is 90 degrees, because the force is straight down and the lever arm is horizontal:
θ = 90 degrees = π/2 radians
Plugging in the values, we get:
τ = r × F × sin(θ) = 0.36 m × 17.658 N × sin(π/2) ≈ 6.34 N·m
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Which characterictic of motion could change without changing the velocity of an object
Answers
Answer:
The direction could change
In the Skycoaster amusement park ride, riders are suspended from a tower by a long cable. A second cable then lifts them until they reach the starting position indicated in (Figure 1). The lifting cable is then released, and the riders swing down the circular arc shown. If the four riders have a total mass of 330 kg
, what is the tension in the left cable just before release?
Answers
Tension in the left cable is 4395.9 N.
What is meant by tension ?Tension is defined as a pulling force that acts along the length of a flexible medium like rope or cables.
Here,
The total mass of the riders is given, m = 330 kg
Let the tension in the left cable be T₁ and that in the right cable be T₂.
From the figure,
T₁ cos 15 = T₂ cos 26
T₁ = T₂ cos 26/cos 15
Also,
T₁ sin15 + T₂ sin 26 = mg
Substituting values,
(T₂ cos 26/cos 15) sin 15 + T₂ sin 26 = 330x 9.8
0.241 T₂ + 0.438 T₂ = 3234
0.679 T₂ = 3234
T₂ = 4762.8 N
Therefore, Tension in the left cable, T₁ = 0.930x 4762.8
T₁ = 4395.9 N
Hence, The tension in the left cable is 4395.9 N
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